First setup? If so, activate online if haven't yet, turn off everything, need to turn off cable modem (take out battery if there is battery), turn modem back on first, wait until it goes online, then ooma, wait until it gets online (blue tab), then the router. Before you turn everything on, do a double take on the ethernet wiring: Ooma's modem port goes to modem and Ooma's home port goes to router.